Re: Cast jsonb to numeric, int, float, bool

Thanks for everyone, pushed with some editorization

Teodor Sigaev wrote:
>> I think, it should support from/to numeric/bool/text only. If we want to have 
>> casts to from numeric to other numeric types then it should be full set (int2, 
>> int4, int8, float4, float8).
> 
> I was too optimistic about casting to/from text. It already exists and it works 
> by differ way from suggested  casts:
> 
> 1) select '"foo"'::jsonb::text;  -> "foo"  // with ""
> 2) select '123'::jsonb::text;    -> 123
> 3) select '123'::jsonb::int4;    -> 123
> 
> Seems, sometime it would be desirable result in 1) as just
> 'foo' without "" decoration, but we cannot have 2 different explicit casts for 
> the same types. So, I withdraw objections about text casting, but I still 
> believe that we need one of two variants:
> 1) numeric/bool
> 2) bool, numeric/all variants of numeric types
> 
> 

-- 
Teodor Sigaev                                   E-mail: teodor@sigaev.ru
                                                    WWW: http://www.sigaev.ru/